Finding the Fourth Proportional to 79,513.12, 109,729.20 and 43,706.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79,513.12 : 109,729.20 = 43,706.56 : x
2. Step 2: Convert to fraction form
   79,513.12/109,729.20 = 43,706.56/x
3. Step 3: Cross multiply
   79,513.12x = 109,729.20 × 43,706.56
4. Step 4: Simplify right side
   79,513.12x = 4,795,885,863.55
5. Step 5: Solve for x
   x = 4,795,885,863.55/79,513.12
6. Step 6: Final answer
   x = 60,315.65